from_site_set_to_image.hh

// Copyright (C) 2008, 2009 EPITA Research and Development Laboratory (LRDE)
//
// This file is part of Olena.
//
// Olena is free software: you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation, version 2 of the License.
//
// Olena is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Olena.  If not, see <http://www.gnu.org/licenses/>.
//
// As a special exception, you may use this file as part of a free
// software project without restriction.  Specifically, if other files
// instantiate templates or use macros or inline functions from this
// file, or you compile this file and link it with other files to produce
// an executable, this file does not by itself cause the resulting
// executable to be covered by the GNU General Public License.  This
// exception does not however invalidate any other reasons why the
// executable file might be covered by the GNU General Public License.

#ifndef MLN_CONVERT_IMPL_FROM_SITE_SET_TO_IMAGE_HH
# define MLN_CONVERT_IMPL_FROM_SITE_SET_TO_IMAGE_HH


# include <mln/core/image/dmorph/sub_image.hh>
# include <mln/geom/bbox.hh>
# include <mln/trait/image_from_grid.hh>
# include <mln/data/fill.hh>


namespace mln
{

  // Forward declarations.
  template <typename E> struct Site_Set;
  template <typename E> struct Image;


  namespace convert
  {

    namespace impl
    {

      template <typename S, typename I>
      void
      from_site_set_to_image(const Site_Set<S>& from, Image<I>& to);



# ifndef MLN_INCLUDE_ONLY

      template <typename S, typename I>
      inline
      void
      from_site_set_to_image(const Site_Set<S>& from_, Image<I>& to_)
      {
        const S& from = exact(from_);
        I& to = exact(to_);
        
        box<mln_site(S)> b = geom::bbox(from);

        typedef mln_deduce(I, site, grid) G;
        typedef mln_value(I) V;
        mln_image_from_grid(G, V) ima(b);
        data::fill(ima, false);
        data::fill((ima | from).rw(), true);

        to = ima;
      }

# endif // ! MLN_INCLUDE_ONLY

    } // end of namespace mln::convert::impl

  } // end of namespace mln::convert

} // end of namespace mln


#endif // ! MLN_CONVERT_IMPL_FROM_SITE_SET_TO_IMAGE_HH